Bio Hunter Silva is an antagonist from Choudenshi Bioman and the true main antagonist of the Super Hero Taisen movie. He is a robot manufactured by the Anti-Bio Union tasked with destroying anything with Bio Particles. Silva was later rebuilt as a member of Dai-Zangyack to hunt down the Kamen Riders under the title Rider Hunter Silva. However, he later usurps control of the organization and forms an alliance with Dai-Shocker.